40732869 has 8 divisors (see below), whose sum is σ = 54423072. Its totient is φ = 27098960.

The previous prime is 40732859. The next prime is 40732873. The reversal of 40732869 is 96823704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40732869 is a prime.

It is a super-3 number, since 3×40732869³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40732829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12354 + ... + 15299.

It is an arithmetic number, because the mean of its divisors is an integer number (6802884).

Almost surely, 2^40732869 is an apocalyptic number.

It is an amenable number.

40732869 is a deficient number, since it is larger than the sum of its proper divisors (13690203).

40732869 is a wasteful number, since it uses less digits than its factorization.

40732869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28147.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 40732869 is about 6382.2307228743. The cubic root of 40732869 is about 344.0712090056.

The spelling of 40732869 in words is "forty million, seven hundred thirty-two thousand, eight hundred sixty-nine".